Hair dryer



FIG. 1 is a perspective view of a hair dryer showing our new design;

FIG. 2 is a top plan view;

FIG. 3 is a bottom plan view;

FIG. 4 is a rear elevational view;

FIG. 5 is a left side elevational view; and

FIG. 6 is a front elevational view. 

The ornamental design or a hair dryer, substantially as shown and described. 